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PH 13-8 Mo VM SOL TR - Precipitation Hardened SS

PH 13-8 Mo stainless is a martensitic precipitation/age-hardening stainless steel capable of high strength and hardness along with good levels of resistance to both general corrosion and stress-corrosion cracking. In addition, the alloy exhibits good ductility and toughness in large sections in both the longitudinal and transverse directions. The excellent properties of PH 13-8 Mo stainless are obtained through close control of chemical composition and microstructure plus specialized melting which reduces impurities and minimizes segregation. Compared to other ferrous-based materials, this alloy offers a high level of useful mechanical properties under severe environmental conditions.

13-8 Mo stainless has good fabrication characteristics and can be age-hardened by a single low temperature treatment. Cold work prior to aging increases the aging, especially for lower aging temperatures.

13-8 Mo stainless has been used for valve parts, fittings, cold-headed and machined fasteners, shafts, landing gear parts, pins, lock washers, aircraft components, nuclear reactor components and petrochemical applications requiring resistance to stress-corrosion cracking. Generally, this alloy should be considered where high strength, toughness, corrosion resistance, and resistance to stress-corrosion cracking are required in a steel showing minimal directionality in properties.

MasterSource offers a complete line of type 13-8 Mo stainless steel inventory as noted below.


  13-8 MO VM
13-8 MO SS
AISI Type S13800
AISI Type XM-13
AISI 13Cr-8Ni
PH 13-8 Mo
PH 13-8 Mo VM
PH 13-8 MO Vacuum Melt
UNS S13800
CL XM-13
Class XM-13
Grade XM-13
Stainless Steel 13Cr-8Ni
TY PH 13-8 Mo
TYPE 13-8 Mo
TYPE PH 13-8 Mo
Type XM-13
AMS 2300
AMS 5629 TYPE 1
ASTM A564 Grade XM-13

Custom Shapes


Round bar

Compliance: Metals distributed by and thru MasterSource Company Inc. are in compliance with Section 1502 of the Dodd-Frank Act pertaining to conflict minerals.


PH 13-8 Mo® is a registered trademark of Armco, Inc.

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